Question 1

Which of the following is the correct formula for magnesium nitrate?

Accepted Answer

$$\mathrm{Mg(NO_3$)_2}$$

Question 2

What is the name of the polyatomic ion with the formula $$\mathrm{SO_3$^{2-}}$$?

Accepted Answer

Sulfite

Question 3

Which of the following compounds contains a polyatomic ion with a positive charge?

Accepted Answer

$$\mathrm{NH_4Cl}$$

Question 4

What is the correct name for the compound $$\mathrm{Fe(OH)_3}$$?

Accepted Answer

Iron(III) hydroxide

Question 5

Which of the following is the correct formula for aluminum bicarbonate?

Accepted Answer

$$\mathrm{Al($$HCO_3$$)_3}$$

Question 6

A compound is named sodium phosphate. What is its correct formula?

Accepted Answer

$$\mathrm{Na_3PO_4}$$

Question 7

Which of the following polyatomic ions is an exception to the 'ate'/'ite' naming rule?

Accepted Answer

Hydroxide

Question 8

What is the correct name for the compound $$\mathrm{Pb_3$(PO_3$)_2}$$?

Accepted Answer

Lead(II) phosphite

Question 9

Which of the following ions has a $$2-$$ charge?

Accepted Answer

$$\mathrm{SO_4$^{2-}}$$

Question 10

What is the formula for copper(I) nitrate?

Accepted Answer

$$\mathrm{$$CuNO_3$$}$$

Question 11

Which of the following is the correct formula for tin(IV) hydroxide?

Accepted Answer

$$\mathrm{Sn(OH)_4}$$

Question 12

A fertilizer contains ammonium nitrate. Which ions are present in this compound?

Accepted Answer

Ammonium and nitrate

Question 13

Which of the following is the correct name for $$\mathrm{Ca(NO_2$)_2}$$?

Accepted Answer

Calcium nitrite

Question 14

What is the correct formula for barium phosphite?

Accepted Answer

$$\mathrm{Ba_3$(PO_3$)_2}$$

Question 15

Which of the following ions is formed by adding a hydrogen ion to carbonate?

Accepted Answer

$$\mathrm{$$HCO_3$$^-}$$

Question 16

Which of the following is the correct name for $$\mathrm{$$NaClO_4$$}$$?

Accepted Answer

Sodium perchlorate

Question 17

A patient is given a plaster cast made of $$\mathrm{$$CaSO_4$$}. $$What is the name of the polyatomic ion present?

Accepted Answer

Sulfate

Question 18

Which of the following is the correct formula for nickel(II) carbonate?

Accepted Answer

$$\mathrm{$$NiCO_3$$}$$

Question 19

Which of the following polyatomic ions contains phosphorus and has a $$3-$$ charge?

Accepted Answer

$$\mathrm{PO_4$^{3-}}$$

Question 20

Which of the following is the correct formula for calcium acetate?

Accepted Answer

$$\mathrm{Ca(C_2H_3O_2)_2}$$

Polyatomic Ions: Names, Formulas, and Ionic Compounds

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